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440hp Budget-Built Vortec Small-Block
In the never-ending quest for power, we swapped the stamped-steel 1.5:1 rockers for full 1.6:1 aluminum rollers. Original equipment on the limited-run LT4 engine, these rockers utilize the self-aligning design required for the Vortec heads. As shown on the dyno graph, the 1.6 rockers really let the engine breathe at high rpm, and we saw impressive gains in power and torque. View Related Article
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